I checked this new command on Wings3D v2.2.1.
![[Image: pGsPMaW.png]](https://i.imgur.com/pGsPMaW.png)
Other interesting things about this command...
If you union two objects whose normal is inverted, the parts touched by the objects are engraved as edges on each object.![Biggrin Biggrin](https://www.wings3d.com/forum/images/smilies/biggrin.png)
(Edit:2019-1-30)
Coplaner is a failed case even with Boolean operation in other 3D softwares too. (See Overlapping Surface Area)
Troubleshoot_boolean_operations (Rhinoceros3D Help)
![[Image: pGsPMaW.png]](https://i.imgur.com/pGsPMaW.png)
Other interesting things about this command...
If you union two objects whose normal is inverted, the parts touched by the objects are engraved as edges on each object.
![Biggrin Biggrin](https://www.wings3d.com/forum/images/smilies/biggrin.png)
(Edit:2019-1-30)
Coplaner is a failed case even with Boolean operation in other 3D softwares too. (See Overlapping Surface Area)
Troubleshoot_boolean_operations (Rhinoceros3D Help)